Add vector property types

[nkrisc]

Description

Added four new vector properties:

• Vector2i
• Vector2
• Vector3i
• Vector3

Added related getter and setter methods to PandoraEntity for each new property type.

Updated docs to reflect new properties.

Addressed issues

• closes 🎯 Vector property #71

Screenshots

[bitbrain]

@nkrisc tests seem to fail - make sure to check the logs for the errors. You also seem to have introduced a memory leak via stray nodes. Ensure to always free up nodes you instantiate via new() that are objects.

https://mikeschulze.github.io/gdUnit3/advanced_testing/orphan/

[nkrisc]

I believe the issues, including the stray nodes, are related to the fact I used the EditorSpinSlider node which fails to instantiate since the tests are not run in the editor and that particular control is only available in the editor itself. The only objects I directly create via new() are the EditorSpinSliders, and they are added to the root node of the scene so they should be freed when the property controls are freed. Looking at the logs, it seems the stray nodes occurred during the property bar test, probably when the property scenes are initially being instantiated. But I'll have to look more closely later today.

I used this control since it's an editor plugin and to ensure consistency with vector input fields elsewhere in the editor.

However, seems using that control is essentially untestable. So the options I see:

1. Just use a SpinBox instead and have it be different.
2. Check if it's running in the editor context or not, and choose SpinBox or EditorSpinSlider based on that
3. Recreate the EditorSpinSlider node (probably not worth it)

[nkrisc]

I replaced the EditorSpinSlider with a SpinBox to keep things simple for now and all tests pass on my end. I'll leave that as a possible future enhancement.

I also realized I wasn't using GDUnit correctly initially and that's why I didn't catch it earlier - noob mistake.

[bitbrain]

Thank you!